Blog
Notes from the workshop floor.
Market, technology, brand. Written by Dr. Raphael Nagel and the team. Published when something needs to be said.
March 18, 2025 · Dr. Raphael Nagel
Mobile Video Surveillance 2026: How 18-Month Rentals Beat CapEx
Mobile surveillance as a finance decision. Lease, rent, capex, hybrid. Four models, twelve break-even scenarios, one honest answer.
March 12, 2025 · Dr. Raphael Nagel
Surveillance Trailer Rental: The US Market by Zip-Code-Tier
US mobile surveillance trailer pricing, broken down by metro tier. Why Manhattan rates differ from Houston rates differ from a Wyoming oil yard. The honest map.
March 10, 2025 · Dr. Raphael Nagel
Construction Security Companies: Where the Markups Hide
A frank comparison of construction security firms in 2026. Per-hour rates, per-night rates, technology bundles, and the markup line items nobody itemizes.
February 20, 2025 · Dr. Raphael Nagel
NIST 800-53 Physical Controls: What Every CISO Mistranslates
The PE control family, line by line, with the implementation patterns operators actually use. The translation between framework and floor.
February 14, 2025 · Dr. Raphael Nagel
Builders Risk Insurance: How Theft Claims Actually Settle
A step-by-step reading of builders risk theft claims in 2026. What gets paid, what gets denied, what gets contested, and why documentation matters more than coverage.
February 11, 2025 · Dr. Raphael Nagel
Security Robots For Sale vs Rental: When CapEx Actually Wins
A CFO-side reading of the buy-vs-rent decision for security robotics. The three deployment patterns where capex beats opex, and the rest.
February 5, 2025 · Dr. Raphael Nagel
NPSA Physical Security: The UK Guidance Everyone Misreads
NPSA, the successor to CPNI, has rewritten the UK CNI guidance. A practitioner reading of what changed and what UK operators must now demonstrate.
January 24, 2025 · Dr. Raphael Nagel
AI Video Analytics Software: Nine Vendors, One Honest Comparison
The nine credible vendors in 2026 AI video analytics, scored against the same eight criteria. No paid placements, no "best of" listicle nonsense.
January 22, 2025 · Dr. Raphael Nagel
Construction Site Theft Prevention: 23 Measures, Ranked by ROI
Twenty-three measures, scored against actual theft data, ranked by ROI per dollar invested. The list every GC should print and pin in the trailer.
January 21, 2025 · Dr. Raphael Nagel
Mobile CCTV Towers: What Seventy Percent of Buyers Regret Choosing
A buyer-side autopsy of mobile CCTV tower procurement. The four buying mistakes that show up after six months, and how to avoid them.
January 15, 2025 · Dr. Raphael Nagel
Industrial Perimeter Security: Architecture Layered for Cost
Layered perimeter security as an architecture decision, not a shopping list. How to spend $200k vs $2M and not waste either.
December 28, 2024 · Dr. Raphael Nagel
Construction Site Security Cost: Four Tiers, One Honest Budget
Four budget tiers for construction security, mapped against project size and risk profile. The honest breakdown that survives a CFO review.